Improvement in window-screens



E. P. PoMERoY.

WINDOW-SCREEN.

Na. 192,875. Patente@ my 1o. 1w.

N.PE1'E.|-Sy PHOTO-LITHOGRAPHER WASHINGTON. D C.

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.EDWARD P. POMEROY, OF SPRINGFIELD, MASSACHUSETTS.

IMPROVEMENT IN WINDow-SCREENS.

Specification forming part of Letters Patent No. 192,575, dated July 10, 1877; application tiled April 26, 1877. o y

y To all whom -it may concern.-

.of Massachusetts, have invented a new and useful Improvement in Adjustable Window- Screens, which improvement is fully set forth in the annexed specilication and in the accompanying drawings.

The object of my invention is to provide certain improvements in window screens, which are made to be held in position in a Window by two spring-rollers, by which the springs in the rollers shall be so covered by a cap or tube sliding over them that neither the action of the springs nor the place they occupy in the rollers shall tend to wrinkle or displace the screen thereto attached.

A further object of my invention is to provide suitable cushions, attached to the ends of the rollers, whereby the necessary springpressure to be exerted between the ends of the rollers and Window-casing, in order to retain the screen in place against the force of strong currents of air, can be had without the danger of making injurious indentations in the window-casings, as would be the case were the wood ends of the rollers or metal ends ofthe caps allowed to bear directly against the casings.

)The roller ends being cushioned, a much weaker and more convenient spring to manipulate can be applied tothe rollers, so that but little force is required to put the screens into, or remove them from, the window.

Furthermore, my screens can be instantly removed from the window and rolled into compact form, to be put aside when not wanted in the window, and can be constructed at so low a price as to bring it within the means of every one to purchase them. They require no fittings to be attached to the windowlsill or jambs to hold them in place.

In the drawings, Figure l represents an ordinary window-frame and sash with one of my improved screens in it. Fig. 2 shows a screen removed from the window; and Fig. 3 is a longitudinal section ot' one of my screenrollers.

I employ two rollers, a, a, around or to which the ends of the netting or material A,

forming the screen, are secured, the' length of the screen being such as would be demanded to cover the entire opening of the part of the window lifted or dropped down, and the rollers are cut the proper length for the width of the window between the jambs.

On one end ofthe roller I put a metallic cap, h, with a longitudinal slot, b, Fig. 2, in it, and between the end of the roller and the interior of the head of cap h I place a spring, t', Fig. 3. rIhe capvh is slipped over the end of the roller, with the spring inside of it pressed to compress the spring a little, and a tack or pin is driven through slot b into the roller to retain the cap in its place. In the opposite end of the rollerI bore a cavity and insert in it a piece of rubber, g, or other iexible or frictional substance.

In placing the screen into a window, take hold of one roller, and, placing the cap end against one of the window-jambs, press against it until the other end will enter between 4the jambs, when it will stay in place, held by spring t' in cap laand by the rubber or frictional material in the other end.

Supposing the roller placed in the windowframe, as above described, to have been the lower one next the window-sill, and the window-sash only .partially lifted up, the screen is, by the hand, rolled upon the upper roller until the unrolled portion is left of sufticient length to `reach up and cover the opening,

when the top roller is pressed into place, as

described above in the case of the first one.

In case the screen is required to cover an opening made by dropping the upper sash only, remove the rollers by pressing them against the cap end, and insert the screen at the top of the window in the 4same way as directed for putting it in below.

In constructing my rollers I do not confine myself to putting the cap and spring on one end and inserting the rubber or other flexible substance in the other end, -using both to retain the roller in place, for, under ordinary circumstances, the rubber inserted in one end of the roller and the other end simply sawed to the proper length for the width ofthe window and smoothed oli', answers all purposes, or the cap and spring on one end and no rubber on the other end might answer.

In the case of the rubber on the roller without the cap and spring, the roller does not so readily adjust itself to variations in the Width of Windows between the jambs. So, also, in case the cap and spring are used and no rubber is inserted in the roller, the Wood end of the roller is more likely to def-ace the surface of the jams; therefore I prefer to make them with both cap and spring and rubber. To protect the face of the jams, against which the head of the cap presses, I cover the head with cloth, or other soft material, attaching it to the head or to the netting of which the screen is made.

When the ends of the netting are sewed to form atube, into which to insert the roller, the ycaps h slide easily therein Without displacing the netting; and When the screen is EDWARD P. POMEROY.

Witnesses:

H. J. LONGLEY, W. H. GHAPIN. 

